Review on 🔋 Versatile Flyhoom Rechargeable Camping Battery for Emergencies by Brian Foster

I bought two 280LM camping lights and after a few modifications they should fit. One of the two bulbs had a broken LED indicator (the one that shows charging or charging). But since I'll be disassembling this thing to modify it for my needs, that's another activity I'll be doing there. Although this lamp provides a good amount of light, the color temperature is too white. Not a big deal as this can be changed with new LEDs. But the biggest problem for me is the incidence of light. Although the lamp provides many hours of light, it is not regulated (the light is rather weak with cell voltages below 3.7 V) and fades over time. When fully charged it seems to give good light for about an hour. But after that you want more. I will include a small boost regulator to keep the light output constant (at the expense of run time of course). The battery inside is also unprotected 18650 (with wires welded to it), but of normal capacity. I will do a capacity test and post the capacity number. But I will replace the one included here with a larger one (>3Ah, assuming the included one is 2Ah). The remote control is really nice to have and allows you to turn the device on and off easily. . It also seems to remember the last setting used, so you don't have to cycle through the silly SOS feature. Overall, the thing has potential, but is better suited for DIY. The maximum charge voltage was also measured at 4.21V, so this thing should not be stored in hot environments at maximum charge to slow degradation. expected. The cell was charged to 4.2V and discharged to 3.0V at 0.66°C (1A). Next I'll run a capacity test at 0.2C, but I don't expect it to get close to 1800mAh even at this much lower rate. the same test conditions as before. The big difference in capacity just shows that this is not a power cell, it is a cheap, low-capacity cell (low cost, large capacity or high power, you can choose one). Overall I'm a bit disappointed with the quality of this device as biz-dev seems to be leading the Flyhoom engineering team. Update 09/12/21: Do not buy, it is not safe. I bought 2 of these lights and after a short period of storage, neither would turn on. I figured now would be a good time to check the BMS safety shutdown and see what the voltage was. Both cells report 1.22V, unacceptable. Because it's lithium-ion, cells light up like this. The originals have terrible capacity, so the security that you as a consumer have to protect you. If you upgrade the elements (like mine, >3 Ah) it might end up catching fire. After seeing this, I would advise against buying it. RUN because they lack the most basic protection circuitry for lithium-ion batteries.